Matter & Energy

In the February 13 Issue:

::	Matter & Energy
	Chemistry Physics

Top Stories | February 9

A charge for freezing water at different temperatures
Experiments use positive and negative forces to control ice formation at temperatures well below the normal freezing point.
Algae use quantum trick to harvest light
A new study finds that proteins used in photosynthesis take advantage of electrons’ wavelike properties
Self-stirring liquids
Chemistry, not force, leads to fluid flow, mixes solution.
Quantum computer simulates hydrogen molecule just right
Team builds device that uses two photons to calculate electron energies.
Tsunamis could telegraph their imminent arrival
Telecommunication cables could give early warnings of giant waves.

:: More in Matter & Energy

Tsunamis could telegraph their imminent arrival

Telecommunication cables could give early warnings of giant waves.

Snail in shining armor

A deep-sea gastropod’s natural shield may offer ideas for human protection.

Science & the Public: BPA is regulated . . . sort of

Food and Drug Administration officials “say they are powerless to regulate BPA” because of a quirk in their rules, according to a story that ran Sunday in the Milwaukee Journal Sentinel. It comes from a reporter who has made an award-winning habit of documenting the politics that have helped make the hormone-mimicking bisphenol-A a chemical of choice for many manufacturers.

Just a stone's throw forms a supersonic jet

Objects hitting water can move air at the speed of sound.

Liquid light bender proposed

Tiny nanoparticles dispersed in fluid may hide objects

:: Science News
1|30 Issue Links

Symmetry found hidden in supercold atoms

Scientists have detected an elusive, complex symmetry in the frequencies of resonating particles

:: See all Matter & Energy

Blogs:

Science & the Public EPA reviews hints of weed killer's fetal risks
By Janet Raloff Feb 4th 2010

Deleted Scenes Journal retracts flawed study linking MMR vaccine and autism
By Science News Staff Feb 3rd 2010

On the Scene How better weather models can save peanut farmers money
By Science News Staff Jan 19th 2010

Columns:

Comment Making informed decisions about mammograms
By Lisa Schwartz Jan 29th 2010

Math Trek Teaching a computer to spot a bogus Bruegel
By Julie Rehmeyer Jan 11th 2010

Not to Miss:

Astronomy meeting round-up

Complete Copenhagen coverage

2009 Science News of the Year

Black holes powering starships

SN Bookshelf:

Book Review: What On Earth Evolved? 100 Species That Changed the World by Christopher Lloyd
Review by Sid Perkins
Buy now | More Books

Book Review: The Joy of Chemistry: The Amazing Science of Familiar Things by Cathy Cobb and Monty L. Fetterolf
Review by Rachel Ehrenberg
Buy now | More Books

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